Apparatus for use in the manufac



Aug. 12, 1941.

w. BRKEY APPARATUS FOR USE IN THE MANUFACTURE OF BARRICADES Filed May 25, 1939 2 Sheets-Sheet l Aug. 12, 1941.v w, BRKEY y 2,252,490 l APPARTUS FOR USE IN THE MANUFACTURE 0F BARRICADES Filed May 25, 1939 2 Sheets-Sheet 2 Patented ug. 12, 1941 Walter Brkey, Hagen, G'rernrialny,A assigner to Rendan Holdings Limited, Guernsey, Channel Islands Application May-25, i939, serial No. 275,735 In Germany January 3, 1939 2 Claims.

This invention relates to the manufacture of wire barricades, obstructions, or entanglements for military or like purposes.

In the specification of my co-pending application No. 250,819 I have described and claimed a barbed wire for barricades of the above character which consists of a single strand steel line wire of circular cross-section which is shaped, pressed, de-formed or profiled to restrain the barbs normally from movement relative to the line wire without however decreasing or weakening the cross-section of the line wire so as to preserve the full tensile strength of the steel employed.

The object of the present invention is to devise simple and effective apparatus for thus profiling or shaping the line wire, and the invention consists in apparatus for the purpose referred to comprising dies between which the wire is pressed for the shaping or profiling operation, means for feeding the Wire between the dies and means for producing relative movement of the dies for profiling and releasing the wire.

Further features of the invention will be apparent from the description given hereafter.

The accompanying drawings illustrate more or less diagrammatically one convenient form of apparatus in accordance with the invention.

Figure 1 is a side elevation of the apparatus.

Figures 2, 3 and 4 are views illustrating a section of the barbed wire produced by the apparatus.

Figure 5 is a section on a somewhat enlarged scale illustrating a part of the apparatus shown in Figure 1, and

Figures 6 and 7 are plan views of the dies shown in Figure 1.

In carrying my invention into effect in one convenient manner I form my improved apparatus with any convenient bedplate. framework or foundation a; in which is mounted a powerdriven shaft li on which is an eccentric c adapted to co-operate with a lever d carrying one of the die members e, which die member is adapted to co-operate with a second member f carried in the machine, it being understood that th-e die members will be suitably shaped and formed depending upon the manner of shaping, pressing, profiling or like operation that is to be performed upon the wire Without decreasing its cross-sectional strength. As an example I have shown in Figures 2, 3 and 4 one particular form of profiling that may be adopted as described in the before mentioned specification, and the dies shown in Figures 6 and 7 are suitable for such profiling,

it being understood however that there may be two sets of `dies of different shapes adapted to be used successively when the profiling is to be carried out upon the wire in two directions at right angles or in some cases the whole operation may be carried out by the one set of dies. In Figures 2, 3, and 4, the line wire is shown at t, the barbs at t and the profiling of the line wire at t2 and t3.

The lever d may carry a roller y to co-operate with the eccentric or any other convenient means may be adopted for producing the required opening and closing movement of the dies.

The shaft b carries a disc h connected by a link z' with a pawl lever Ic co-operating with a dividing circle l of suitable form whereby the wire may be intermittently fed through the machine when the profiling is to be effected at spaced intervals upon the wire and not continuously throughout its length.

The intermittent feed may be of any suitable form and the pawl or other mechanism for moving the wire through a certain distance for one revolution of the disch may be such that on its backward movement it will leave the wire stationary but on its forward movement will feed the Wire a certain distance through the machine for the next successive profiling operation, and it will be understood that the eccentric or other means for operating the dies and the intermittent feed will be so timed in relation to one another that the dies will operate during the time that the wire is stationary in the machine and the intermittent feeding mechanism will come into operation to move the wire a further step forward when the dies have been separated to release the wire.

Figure 5 illustrates in detail one particular form of dividing circle having cam surfaces thereon by which the feeding means for the wire will be stationary during the backward movement of the pawl lever k.

Referring to Figures 1 and 5, the dividing circle Z consists of a disc fixed upon a rotary shaft m and having on its outer face a succession of arcuate recesses n arranged in a circle around the outer periphery of the disc and each formed with a cam-shaped base surface o inclined downwardly with respect to the direction of rotation of the disc and terminating in an aperture pinto which a spring mounted pin kl on the pawl lever Ic is adapted to enter at the end of each backward movement of the pawl lever so that upon the next forward movement thereof the disc will be advanced a step due to the positive engagement of the pin in said aperture and its abutment against the rear wall q or the recess. On the backward movement of the pawl lever the said pin moves away from the aperture and rides along the cam surface o so that there is no driving connection between the pawl lever and the disc during such movement. The feeding of the wire to the dies is effected by a pair of rollerss, s' of which the roller s is fixed upon the shaft m andthe roller s is urged into engagement with its companion roller, as by pressure of the spring s2.

It will be understood that the foregoing details are given purely by way of illustration td indicate the nature of the invention as I may modify the form of the dies employed; the means for opening and closing the'same and the arrangements adopted for feeding the wire through the machine depending upon the particular rcharacter of shaping, pressing, or profiling that is vto be performed or any practical requirements that may have to be fulfilled.

2. Apparatus according to claim 1 in which the intermittent feed mechanism comprises a dividing circle with clamping means for the Wire such that the wire is stationary during the backward movement of the actuating mechanism but is fed forward during forward movement of the same to feed the wire to another position between the dies.

WALTER BORKEY. 

